/Engine/Plugins/Experimental/MeshModelingToolsetExp/Source/MeshModelingToolsExp/Public/Sculpting/MeshSculptToolBase.h
Temporal Flow Rate defines the frequency of stamp placement. 1 is max rate, 0 is no stamps. Defaults to BrushProperties->FlowRate, but subclasses can re-use that setting for other things.
virtual float GetStampTemporalFlowRate() const